<template>
  <div id="app-container">
    <!--Header-->
    <mt-header fixed title="vue项目">
      <span slot="left" @click="back" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>

    <!--中间路由区域-->
    <transition>
      <router-view></router-view>
    </transition>
    <!--tabbar-->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-item1" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-item1" to="/vip">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </router-link>
      <router-link class="mui-tab-item1" to="/shopCar">
        <span class="mui-icon mui-icon-extra mui-icon-extra-cart">
          <span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span>
        </span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-item1" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>
  </div>
</template>

<script>
export default{
  data(){
    return{
      flag:false
    };
  },created(){
    this.flag=this.$route.path==="/home"?false:true;
  },
 methods:{
   back(){
     //点击后退
     this.$router.go(-1);
   }
 },
 watch:{
   '$route.path':function(newVal){
     if(newVal==='/home'){
         this.flag=false;
     }else{
       this.flag=true
     }
   }
 }
}
</script>

<style lang="scss" scoped>
//改类名解决tarbar无法切换的问题
.mui-bar-tab {
  .mui-tab-item1.mui-active {
    color: #007aff;
  }
  .mui-tab-item1 {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
    .mui-icon {
      top: 3px;
      width: 24px;
      height: 24px;
      padding-top: 0;
      padding-bottom: 0;
    }
    .mui-icon ~ .mui-tab-label {
      font-size: 11px;
      display: block;
      overflow: hidden;
      text-overflow: ellipsis;
    }
  }
}

#app-container {
  .mint-header {
    z-index: 99;
  }
  padding-top: 40px;
  padding-bottom: 50px;
  overflow-x: hidden;
}

.v-enter {
  //进入之前的样式 .v-enter-to进入后的样式
  opacity: 0;
  transform: translateX(100%);
}
.v-leave-to {
  //离开之后的样式 ,v-leave离开之前的样式
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
.v-enter-active,
.v-leave-active {
  transition: all 0.5s ease;
}
</style>
